The following bar graph shows the results of an annual examination in a secondary school.

Read the bar graph (Fig. 23.28) and choose the correct alternative in each of the following:

(i) The pair of classes in which the results of boys and girls are inversely proportional are :

(a) VI, VIII (b) VI, IX

(c) VIII, IX (d) VIII, X

(ii) The class having the lowest failure rate of girls is

(a) VII (b) X

(c) IX (d) VIII

(iii) The class having the lowest pass rate of students is

(a) VI (b) VII

(c) VIII (d) IX

Explain the reading and interpretation of bar graphs.

Read the following bar graph and answer the following questions:

(i) What information is given by the bar graph?

(ii) In which year the export is minimum?

(iii) In which year the import is maximum?

(iv) In which year the difference of the values of exports and imports is maximum?

The following data gives the number (in thousands) of a applicants registered with an Employment Exchange during, 1995-2000:

Constructut a bar graph to represent the above data

The production of saleable steel in some of the steel plants of our country during 1999 is given below:

Construct a bar graph to represent the above data on a graph paper by using the scale 1 big divisions = 20 thousand tonnes.